.background_dengru{
	background:url(../image/dengru.jpg);
	width:1200px;
	height:800px;
	margin:0px auto;
	position: relative;
}
.dengru{
	
	position: absolute;
	top:400px;
	left:540px;
	
}
.dengru input{
	
	width:200px;
	height:30px;
	border:solid green;
	border-radius:9px;
	font-size: 16px;
	margin-top:20px;
	
}
